In an interview to air Sunday on "Face the Nation," former New York City Mayor and billionaire philanthropist Michael Bloomberg excoriated Scott Pruitt's job performance as head of the Environmental Protection Agency.

"His policies are not good for the world. To debunk science and walk away from it is just ridiculous. Even if you don't believe it. If there's a possibility that it's right you have to take prophylactic actions to prevent a disaster," Bloomberg told "Face the Nation" moderator Margaret Brennan.

Bloomberg is among those who have heavily criticized the EPA administrator's work rolling back Obama-era environmental regulations. Pruitt has also faced a storm of criticism for pricey travel and a condo rental tied to a fossil fuels lobbyist.

"I don't know about all of the things that are alleged in terms of spending money on things that he really shouldn't do. If that's really true, he should not do that and we should stop that," Bloomberg said of Pruitt's controversies.

With the support of President Trump, Pruitt's agency has gutted the core of climate change regulations, arguing the move would restore lost coal jobs and reduce electricity rates.

"His job is to protect the environment and he has walked away 100 percent from that saying the environment doesn't need protection, I'm going to protect jobs," Bloomberg said, "that's not his job."